Question: Factors for Calculating Three-Sigma Limits for the Chart and R-Chart Factor for Size of Factor for UCL and LCL for Factor for LCL for R-Charts

Factors for Calculating Three-Sigma Limits for

Factors for Calculating Three-Sigma Limits for the Chart and R-Chart Factor for Size of Factor for UCL and LCL for Factor for LCL for R-Charts UCL for Sample x-bar-Charts R-Charts (x) A2 D3 D4 2 1.880 0 3.267 3 1.023 10 2.575 4 0.729 0 2.282 5 0.577 0 2.115 6 0.483 10 2.004 17 0.419 0.076 1.924 0.373 0.136 1.864 0.337 0.184 1.816 10 0.308 0.223 1.777 Source: 1950 ASTM Manual on Quality Control of Materials, copyright American Society for Testing Materials. Reprinted with permission. The defect rate for a product has historically been about 2.0%. What are the upper and lower control chart limits if you wish to use a sample size of 100 and 3-sigma limits? All answers are in (LCL,UCL) format. A) (0.00, 0.048) B) (0.00, 0.067) C) (0.00, 0.062) D) (0.00, 0.059) 8 19

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